<header id="page-header">
  <!-- Header Content -->
  <div class="content-header">
      <!-- Left Section -->
      <div class="d-flex align-items-center">
          <!-- Toggle Sidebar -->
          <!-- 小屏菜单按钮 -->
          <button type="button" class="btn btn-sm btn-dual mr-2 d-lg-none" data-toggle="layout" data-action="sidebar_toggle">
              <i class="fa fa-fw fa-bars"></i>
          </button>
          <!-- END Toggle Sidebar -->

          <!-- Toggle Mini Sidebar -->
          <!-- 大屏菜单按钮 -->
          <button type="button" class="btn btn-sm btn-dual mr-2 d-none d-lg-inline-block" data-toggle="layout" data-action="sidebar_mini_toggle">
              <i class="fa fa-fw fa-ellipsis-v"></i>
          </button>
          <!-- END Toggle Mini Sidebar -->
      </div>
      <!-- END Left Section -->

      <!-- Right Section -->
      <div class="d-flex align-items-center">
          <!-- User Dropdown -->
          <div class="dropdown d-inline-block ml-2">
              <button type="button" class="btn btn-sm btn-dual" id="page-header-user-dropdown" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                  <img class="rounded" src="/avatar1.jpg" alt="Header Avatar" style="width: 18px;">
                  <span class="d-none d-sm-inline-block ml-1">Adam</span>
                  <i class="fa fa-fw fa-angle-down d-none d-sm-inline-block"></i>
              </button>
              <div class="dropdown-menu dropdown-menu-right p-0 border-0 font-size-sm" aria-labelledby="page-header-user-dropdown">
                  <div class="p-3 text-center bg-primary">
                      <img class="img-avatar img-avatar48 img-avatar-thumb" src="/avatar1.jpg" alt="">
                  </div>
                  <div class="p-2">
                      <h6 class="dropdown-item">
                        <a href="">个人信息</a>
                      </h6>
                  </div>
              </div>
          </div>
          <!-- END User Dropdown -->
      </div>
      <!-- END Right Section -->
  </div>
  <!-- END Header Content -->
</header>